Question
Find tanx if sinx = 3/4 and x is in quadrant II.
Answers
Steve
in Q II y is positive and x is negative
sin x = 3/4 means that y = 3, r = 4, x = -sqrt(7)
So, tan = y/x = -3/sqrt(7)
sin x = 3/4 means that y = 3, r = 4, x = -sqrt(7)
So, tan = y/x = -3/sqrt(7)